When you are cooking fish? I ran out of aluminum foil, all I have is parchment paper on hand. Does it matter or affect the way the fish gets cooked? Just wondering what the difference is, if any.
Aluminum foil will heat faster and retain that heat. Parchment paper will retain little heat but the fish won't stick to it when you remove it from the oven.
The fish should cook fine in the parchment paper - it could be even better that way.
Just wrap the fish in the parchment and you will be fine. It won't be as air-tight as the aluminum, and it is a lot more flimsey, so the fish may not steam as well, but it will be fine.
